import cv2
import numpy as np
img=cv2.imshow("build.png")
cv2.imshow('Input'img)
gray=cv2.ORB_create(nfeatures=2000)
kp.des=orb.detectAndCompute(gray,None)
img=cv2.drawKeypoints(gray,kp,img)
cv2.imshow('drawKeypoints',img)
print("kp.shape:",np.shape(kp))
print("des.shape:",np.shape(des))
cv2.waitKey()
cv2.destroyAllWindows()